summaryrefslogtreecommitdiff
path: root/js
diff options
context:
space:
mode:
Diffstat (limited to 'js')
-rwxr-xr-xjs/stmd.js238
1 files changed, 131 insertions, 107 deletions
diff --git a/js/stmd.js b/js/stmd.js
index efccad8..23caf31 100755
--- a/js/stmd.js
+++ b/js/stmd.js
@@ -2137,6 +2137,30 @@
zwj: '‍',
zwnj: '‌' };
+ // Constants for inline and block types:
+
+ var I_STR = 1;
+ var I_SOFT_BREAK = 2;
+ var I_HARD_BREAK = 3;
+ var I_EMPH = 4;
+ var I_STRONG = 5;
+ var I_HTML = 6;
+ var I_LINK = 7;
+ var I_IMAGE = 8;
+ var I_CODE = 9;
+ var B_DOCUMENT = 10;
+ var B_PARAGRAPH = 11;
+ var B_BLOCK_QUOTE = 12;
+ var B_LIST_ITEM = 13;
+ var B_LIST = 14;
+ var B_ATX_HEADER = 15;
+ var B_SETEXT_HEADER = 16;
+ var B_INDENTED_CODE = 17;
+ var B_FENCED_CODE = 18;
+ var B_HTML_BLOCK = 19;
+ var B_REFERENCE_DEF = 20;
+ var B_HORIZONTAL_RULE = 21;
+
// Constants for character codes:
var C_NEWLINE = 10;
@@ -2273,7 +2297,7 @@
// Convert tabs to spaces on each line using a 4-space tab stop.
var detabLine = function(text) {
- if (text.indexOf('\t') == -1) {
+ if (text.indexOf('\t') === -1) {
return text;
} else {
var lastStop = 0;
@@ -2335,8 +2359,8 @@
var foundCode = false;
var match;
while (!foundCode && (match = this.match(/`+/m))) {
- if (match == ticks) {
- inlines.push({ t: 'Code', c: this.subject.slice(afterOpenTicks,
+ if (match === ticks) {
+ inlines.push({ t: I_CODE, c: this.subject.slice(afterOpenTicks,
this.pos - ticks.length)
.replace(/[ \n]+/g,' ')
.trim() });
@@ -2345,7 +2369,7 @@
}
// If we got here, we didn't match a closing backtick sequence.
this.pos = afterOpenTicks;
- inlines.push({ t: 'Str', c: ticks });
+ inlines.push({ t: I_STR, c: ticks });
return true;
};
@@ -2358,13 +2382,13 @@
if (subj.charCodeAt(pos) === C_BACKSLASH) {
if (subj.charAt(pos + 1) === '\n') {
this.pos = this.pos + 2;
- inlines.push({ t: 'Hardbreak' });
+ inlines.push({ t: I_HARD_BREAK });
} else if (reEscapable.test(subj.charAt(pos + 1))) {
this.pos = this.pos + 2;
- inlines.push({ t: 'Str', c: subj.charAt(pos + 1) });
+ inlines.push({ t: I_STR, c: subj.charAt(pos + 1) });
} else {
this.pos++;
- inlines.push({t: 'Str', c: '\\'});
+ inlines.push({t: I_STR, c: '\\'});
}
return true;
} else {
@@ -2379,15 +2403,15 @@
if ((m = this.match(/^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/))) { // email autolink
dest = m.slice(1,-1);
inlines.push(
- {t: 'Link',
- label: [{ t: 'Str', c: dest }],
+ {t: I_LINK,
+ label: [{ t: I_STR, c: dest }],
destination: 'mailto:' + encodeURI(unescape(dest)) });
return true;
} else if ((m = this.match(/^<(?:coap|doi|javascript|aaa|aaas|about|acap|cap|cid|crid|data|dav|dict|dns|file|ftp|geo|go|gopher|h323|http|https|iax|icap|im|imap|info|ipp|iris|iris.beep|iris.xpc|iris.xpcs|iris.lwz|ldap|mailto|mid|msrp|msrps|mtqp|mupdate|news|nfs|ni|nih|nntp|opaquelocktoken|pop|pres|rtsp|service|session|shttp|sieve|sip|sips|sms|snmp|soap.beep|soap.beeps|tag|tel|telnet|tftp|thismessage|tn3270|tip|tv|urn|vemmi|ws|wss|xcon|xcon-userid|xmlrpc.beep|xmlrpc.beeps|xmpp|z39.50r|z39.50s|adiumxtra|afp|afs|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|chrome|chrome-extension|com-eventbrite-attendee|content|cvs|dlna-playsingle|dlna-playcontainer|dtn|dvb|ed2k|facetime|feed|finger|fish|gg|git|gizmoproject|gtalk|hcp|icon|ipn|irc|irc6|ircs|itms|jar|jms|keyparc|lastfm|ldaps|magnet|maps|market|message|mms|ms-help|msnim|mumble|mvn|notes|oid|palm|paparazzi|platform|proxy|psyc|query|res|resource|rmi|rsync|rtmp|secondlife|sftp|sgn|skype|smb|soldat|spotify|ssh|steam|svn|teamspeak|things|udp|unreal|ut2004|ventrilo|view-source|webcal|wtai|wyciwyg|xfire|xri|ymsgr):[^<>\x00-\x20]*>/i))) {
dest = m.slice(1,-1);
inlines.push({
- t: 'Link',
- label: [{ t: 'Str', c: dest }],
+ t: I_LINK,
+ label: [{ t: I_STR, c: dest }],
destination: encodeURI(unescape(dest)) });
return true;
} else {
@@ -2399,7 +2423,7 @@
var parseHtmlTag = function(inlines) {
var m = this.match(reHtmlTag);
if (m) {
- inlines.push({ t: 'Html', c: m });
+ inlines.push({ t: I_HTML, c: m });
return true;
} else {
return false;
@@ -2444,15 +2468,15 @@
};
var Emph = function(ils) {
- return {t: 'Emph', c: ils};
+ return {t: I_EMPH, c: ils};
}
var Strong = function(ils) {
- return {t: 'Strong', c: ils};
+ return {t: I_STRONG, c: ils};
}
var Str = function(s) {
- return {t: 'Str', c: s};
+ return {t: I_STR, c: s};
}
// Attempt to parse emphasis or strong emphasis.
@@ -2776,7 +2800,7 @@
// if we got this far, we've parsed a label.
// Try to parse an explicit link: [label](url "title")
- if (this.peek() == C_OPEN_PAREN) {
+ if (this.peek() === C_OPEN_PAREN) {
this.pos++;
if (this.spnl() &&
((dest = this.parseLinkDestination()) !== null) &&
@@ -2786,7 +2810,7 @@
(title = this.parseLinkTitle() || '') || true) &&
this.spnl() &&
this.match(/^\)/)) {
- inlines.push({ t: 'Link',
+ inlines.push({ t: I_LINK,
destination: dest,
title: title,
label: parseRawLabel(rawlabel) });
@@ -2802,7 +2826,7 @@
this.spnl();
var beforelabel = this.pos;
n = this.parseLinkLabel();
- if (n == 2) {
+ if (n === 2) {
// empty second label
reflabel = rawlabel;
} else if (n > 0) {
@@ -2814,7 +2838,7 @@
// lookup rawlabel in refmap
var link = this.refmap[normalizeReference(reflabel)];
if (link) {
- inlines.push({t: 'Link',
+ inlines.push({t: I_LINK,
destination: link.destination,
title: link.title,
label: parseRawLabel(rawlabel) });
@@ -2832,7 +2856,7 @@
var parseEntity = function(inlines) {
var m;
if ((m = this.match(reEntityHere))) {
- inlines.push({ t: 'Str', c: entityToChar(m) });
+ inlines.push({ t: I_STR, c: entityToChar(m) });
return true;
} else {
return false;
@@ -2844,7 +2868,7 @@
var parseString = function(inlines) {
var m;
if ((m = this.match(reMain))) {
- inlines.push({ t: 'Str', c: m });
+ inlines.push({ t: I_STR, c: m });
return true;
} else {
return false;
@@ -2857,9 +2881,9 @@
var m = this.match(/^ *\n/);
if (m) {
if (m.length > 2) {
- inlines.push({ t: 'Hardbreak' });
+ inlines.push({ t: I_HARD_BREAK });
} else if (m.length > 0) {
- inlines.push({ t: 'Softbreak' });
+ inlines.push({ t: I_SOFT_BREAK });
}
return true;
}
@@ -2872,10 +2896,10 @@
if (this.match(/^!/)) {
var link = this.parseLink(inlines);
if (link) {
- inlines[inlines.length - 1].t = 'Image';
+ inlines[inlines.length - 1].t = I_IMAGE;
return true;
} else {
- inlines.push({ t: 'Str', c: '!' });
+ inlines.push({ t: I_STR, c: '!' });
return true;
}
} else {
@@ -2994,7 +3018,7 @@
}
if (!res) {
this.pos += 1;
- inlines.push({t: 'Str', c: String.fromCharCode(c)});
+ inlines.push({t: I_STR, c: String.fromCharCode(c)});
}
if (memoize) {
@@ -3071,17 +3095,17 @@
// Returns true if parent block can contain child block.
var canContain = function(parent_type, child_type) {
- return ( parent_type == 'Document' ||
- parent_type == 'BlockQuote' ||
- parent_type == 'ListItem' ||
- (parent_type == 'List' && child_type == 'ListItem') );
+ return ( parent_type === B_DOCUMENT ||
+ parent_type === B_BLOCK_QUOTE ||
+ parent_type === B_LIST_ITEM ||
+ (parent_type === B_LIST && child_type === B_LIST_ITEM) );
};
// Returns true if block type can accept lines of text.
var acceptsLines = function(block_type) {
- return ( block_type == 'Paragraph' ||
- block_type == 'IndentedCode' ||
- block_type == 'FencedCode' );
+ return ( block_type === B_PARAGRAPH ||
+ block_type === B_INDENTED_CODE ||
+ block_type === B_FENCED_CODE );
};
// Returns true if block ends with a blank line, descending if needed
@@ -3090,7 +3114,7 @@
if (block.last_line_blank) {
return true;
}
- if ((block.t == 'List' || block.t == 'ListItem') && block.children.length > 0) {
+ if ((block.t === B_LIST || block.t === B_LIST_ITEM) && block.children.length > 0) {
return endsWithBlankLine(block.children[block.children.length - 1]);
} else {
return false;
@@ -3105,7 +3129,7 @@
var b = block;
var last_list = null;
do {
- if (b.t === 'List') {
+ if (b.t === B_LIST) {
last_list = b;
}
b = b.parent;
@@ -3234,7 +3258,7 @@
indent = first_nonspace - offset;
switch (container.t) {
- case 'BlockQuote':
+ case B_BLOCK_QUOTE:
if (indent <= 3 && ln.charCodeAt(first_nonspace) === C_GREATERTHAN) {
offset = first_nonspace + 1;
if (ln.charCodeAt(offset) === C_SPACE) {
@@ -3245,7 +3269,7 @@
}
break;
- case 'ListItem':
+ case B_LIST_ITEM:
if (indent >= container.list_data.marker_offset +
container.list_data.padding) {
offset += container.list_data.marker_offset +
@@ -3257,7 +3281,7 @@
}
break;
- case 'IndentedCode':
+ case B_INDENTED_CODE:
if (indent >= CODE_INDENT) {
offset += CODE_INDENT;
} else if (blank) {
@@ -3267,14 +3291,14 @@
}
break;
- case 'ATXHeader':
- case 'SetextHeader':
- case 'HorizontalRule':
+ case B_ATX_HEADER:
+ case B_SETEXT_HEADER:
+ case B_HORIZONTAL_RULE:
// a header can never container > 1 line, so fail to match:
all_matched = false;
break;
- case 'FencedCode':
+ case B_FENCED_CODE:
// skip optional spaces of fence offset
i = container.fence_offset;
while (i > 0 && ln.charCodeAt(offset) === C_SPACE) {
@@ -3283,13 +3307,13 @@
}
break;
- case 'HtmlBlock':
+ case B_HTML_BLOCK:
if (blank) {
all_matched = false;
}
break;
- case 'Paragraph':
+ case B_PARAGRAPH:
if (blank) {
container.last_line_blank = true;
all_matched = false;
@@ -3328,9 +3352,9 @@
// Unless last matched container is a code block, try new container starts,
// adding children to the last matched container:
- while (container.t != 'FencedCode' &&
- container.t != 'IndentedCode' &&
- container.t != 'HtmlBlock' &&
+ while (container.t != B_FENCED_CODE &&
+ container.t != B_INDENTED_CODE &&
+ container.t != B_HTML_BLOCK &&
// this is a little performance optimization:
matchAt(/^[ #`~*+_=<>0-9-]/,ln,offset) !== null) {
@@ -3346,10 +3370,10 @@
if (indent >= CODE_INDENT) {
// indented code
- if (this.tip.t != 'Paragraph' && !blank) {
+ if (this.tip.t != B_PARAGRAPH && !blank) {
offset += CODE_INDENT;
closeUnmatchedBlocks(this);
- container = this.addChild('IndentedCode', line_number, offset);
+ container = this.addChild(B_INDENTED_CODE, line_number, offset);
} else { // indent > 4 in a lazy paragraph continuation
break;
}
@@ -3362,13 +3386,13 @@
offset++;
}
closeUnmatchedBlocks(this);
- container = this.addChild('BlockQuote', line_number, offset);
+ container = this.addChild(B_BLOCK_QUOTE, line_number, offset);
} else if ((match = ln.slice(first_nonspace).match(/^#{1,6}(?: +|$)/))) {
// ATX header
offset = first_nonspace + match[0].length;
closeUnmatchedBlocks(this);
- container = this.addChild('ATXHeader', line_number, first_nonspace);
+ container = this.addChild(B_ATX_HEADER, line_number, first_nonspace);
container.level = match[0].trim().length; // number of #s
// remove trailing ###s:
container.strings =
@@ -3379,7 +3403,7 @@
// fenced code block
var fence_length = match[0].length;
closeUnmatchedBlocks(this);
- container = this.addChild('FencedCode', line_number, first_nonspace);
+ container = this.addChild(B_FENCED_CODE, line_number, first_nonspace);
container.fence_length = fence_length;
container.fence_char = match[0][0];
container.fence_offset = first_nonspace - offset;
@@ -3389,23 +3413,23 @@
} else if (matchAt(reHtmlBlockOpen, ln, first_nonspace) !== null) {
// html block
closeUnmatchedBlocks(this);
- container = this.addChild('HtmlBlock', line_number, first_nonspace);
+ container = this.addChild(B_HTML_BLOCK, line_number, first_nonspace);
// note, we don't adjust offset because the tag is part of the text
break;
- } else if (container.t == 'Paragraph' &&
+ } else if (container.t == B_PARAGRAPH &&
container.strings.length === 1 &&
((match = ln.slice(first_nonspace).match(/^(?:=+|-+) *$/)))) {
// setext header line
closeUnmatchedBlocks(this);
- container.t = 'SetextHeader'; // convert Paragraph to SetextHeader
+ container.t = B_SETEXT_HEADER; // convert Paragraph to SetextHeader
container.level = match[0][0] === '=' ? 1 : 2;
offset = ln.length;
} else if (matchAt(reHrule, ln, first_nonspace) !== null) {
// hrule
closeUnmatchedBlocks(this);
- container = this.addChild('HorizontalRule', line_number, first_nonspace);
+ container = this.addChild(B_HORIZONTAL_RULE, line_number, first_nonspace);
offset = ln.length - 1;
break;
@@ -3416,14 +3440,14 @@
offset = first_nonspace + data.padding;
// add the list if needed
- if (container.t !== 'List' ||
+ if (container.t !== B_LIST ||
!(listsMatch(container.list_data, data))) {
- container = this.addChild('List', line_number, first_nonspace);
+ container = this.addChild(B_LIST, line_number, first_nonspace);
container.list_data = data;
}
// add the list item
- container = this.addChild('ListItem', line_number, first_nonspace);
+ container = this.addChild(B_LIST_ITEM, line_number, first_nonspace);
container.list_data = data;
} else {
@@ -3453,7 +3477,7 @@
// First check for a lazy paragraph continuation:
if (this.tip !== last_matched_container &&
!blank &&
- this.tip.t == 'Paragraph' &&
+ this.tip.t == B_PARAGRAPH &&
this.tip.strings.length > 0) {
// lazy paragraph continuation
@@ -3470,9 +3494,9 @@
// lists or breaking out of lists. We also don't set last_line_blank
// on an empty list item.
container.last_line_blank = blank &&
- !(container.t == 'BlockQuote' ||
- container.t == 'FencedCode' ||
- (container.t == 'ListItem' &&
+ !(container.t == B_BLOCK_QUOTE ||
+ container.t == B_FENCED_CODE ||
+ (container.t == B_LIST_ITEM &&
container.children.length === 0 &&
container.start_line == line_number));
@@ -3483,12 +3507,12 @@
}
switch (container.t) {
- case 'IndentedCode':
- case 'HtmlBlock':
+ case B_INDENTED_CODE:
+ case B_HTML_BLOCK:
this.addLine(ln, offset);
break;
- case 'FencedCode':
+ case B_FENCED_CODE:
// check for closing code fence:
match = (indent <= 3 &&
ln.charAt(first_nonspace) == container.fence_char &&
@@ -3501,9 +3525,9 @@
}
break;
- case 'ATXHeader':
- case 'SetextHeader':
- case 'HorizontalRule':
+ case B_ATX_HEADER:
+ case B_SETEXT_HEADER:
+ case B_HORIZONTAL_RULE:
// nothing to do; we already added the contents.
break;
@@ -3512,10 +3536,10 @@
this.addLine(ln, first_nonspace);
} else if (blank) {
// do nothing
- } else if (container.t != 'HorizontalRule' &&
- container.t != 'SetextHeader') {
+ } else if (container.t != B_HORIZONTAL_RULE &&
+ container.t != B_SETEXT_HEADER) {
// create paragraph container for line
- container = this.addChild('Paragraph', line_number, first_nonspace);
+ container = this.addChild(B_PARAGRAPH, line_number, first_nonspace);
this.addLine(ln, first_nonspace);
} else {
console.log("Line " + line_number.toString() +
@@ -3546,7 +3570,7 @@
}
switch (block.t) {
- case 'Paragraph':
+ case B_PARAGRAPH:
block.string_content = block.strings.join('\n').replace(/^ */m,'');
// try parsing the beginning as link reference definitions:
@@ -3555,23 +3579,23 @@
this.refmap))) {
block.string_content = block.string_content.slice(pos);
if (isBlank(block.string_content)) {
- block.t = 'ReferenceDef';
+ block.t = B_REFERENCE_DEF;
break;
}
}
break;
- case 'ATXHeader':
- case 'SetextHeader':
- case 'HtmlBlock':
+ case B_ATX_HEADER:
+ case B_SETEXT_HEADER:
+ case B_HTML_BLOCK:
block.string_content = block.strings.join('\n');
break;
- case 'IndentedCode':
+ case B_INDENTED_CODE:
block.string_content = block.strings.join('\n').replace(/(\n *)*$/,'\n');
break;
- case 'FencedCode':
+ case B_FENCED_CODE:
// first line becomes info string
block.info = unescapeEntBS(block.strings[0].trim());
if (block.strings.length == 1) {
@@ -3581,7 +3605,7 @@
}
break;
- case 'List':
+ case B_LIST:
block.tight = true; // tight by default
var numitems = block.children.length;
@@ -3622,9 +3646,9 @@
// into inline content where appropriate.
var processInlines = function(block) {
switch(block.t) {
- case 'Paragraph':
- case 'SetextHeader':
- case 'ATXHeader':
+ case B_PARAGRAPH:
+ case B_SETEXT_HEADER:
+ case B_ATX_HEADER:
block.inline_content =
this.inlineParser.parse(block.string_content.trim(), this.refmap);
block.string_content = "";
@@ -3643,7 +3667,7 @@
// The main parsing function. Returns a parsed document AST.
var parse = function(input) {
- this.doc = makeBlock('Document', 1, 1);
+ this.doc = makeBlock(B_DOCUMENT, 1, 1);
this.tip = this.doc;
this.refmap = {};
var lines = input.replace(/\n$/,'').split(/\r\n|\n|\r/);
@@ -3662,7 +3686,7 @@
// The DocParser object.
function DocParser(){
return {
- doc: makeBlock('Document', 1, 1),
+ doc: makeBlock(B_DOCUMENT, 1, 1),
tip: this.doc,
refmap: {},
inlineParser: new InlineParser(),
@@ -3703,32 +3727,32 @@
var renderInline = function(inline) {
var attrs;
switch (inline.t) {
- case 'Str':
+ case I_STR:
return this.escape(inline.c);
- case 'Softbreak':
+ case I_SOFT_BREAK:
return this.softbreak;
- case 'Hardbreak':
+ case I_HARD_BREAK:
return inTags('br',[],"",true) + '\n';
- case 'Emph':
+ case I_EMPH:
return inTags('em', [], this.renderInlines(inline.c));
- case 'Strong':
+ case I_STRONG:
return inTags('strong', [], this.renderInlines(inline.c));
- case 'Html':
+ case I_HTML:
return inline.c;
- case 'Link':
+ case I_LINK:
attrs = [['href', this.escape(inline.destination, true)]];
if (inline.title) {
attrs.push(['title', this.escape(inline.title, true)]);
}
return inTags('a', attrs, this.renderInlines(inline.label));
- case 'Image':
+ case I_IMAGE:
attrs = [['src', this.escape(inline.destination, true)],
['alt', this.escape(this.renderInlines(inline.label))]];
if (inline.title) {
attrs.push(['title', this.escape(inline.title, true)]);
}
return inTags('img', attrs, "", true);
- case 'Code':
+ case I_CODE:
return inTags('code', [], this.escape(inline.c));
default:
console.log("Unknown inline type " + inline.t);
@@ -3751,48 +3775,48 @@
var attr;
var info_words;
switch (block.t) {
- case 'Document':
+ case B_DOCUMENT:
var whole_doc = this.renderBlocks(block.children);
return (whole_doc === '' ? '' : whole_doc + '\n');
- case 'Paragraph':
+ case B_PARAGRAPH:
if (in_tight_list) {
return this.renderInlines(block.inline_content);
} else {
return inTags('p', [], this.renderInlines(block.inline_content));
}
break;
- case 'BlockQuote':
+ case B_BLOCK_QUOTE:
var filling = this.renderBlocks(block.children);
return inTags('blockquote', [], filling === '' ? this.innersep :
this.innersep + filling + this.innersep);
- case 'ListItem':
+ case B_LIST_ITEM:
return inTags('li', [], this.renderBlocks(block.children, in_tight_list).trim());
- case 'List':
+ case B_LIST:
tag = block.list_data.type == 'Bullet' ? 'ul' : 'ol';
attr = (!block.list_data.start || block.list_data.start == 1) ?
[] : [['start', block.list_data.start.toString()]];
return inTags(tag, attr, this.innersep +
this.renderBlocks(block.children, block.tight) +
this.innersep);
- case 'ATXHeader':
- case 'SetextHeader':
+ case B_ATX_HEADER:
+ case B_SETEXT_HEADER:
tag = 'h' + block.level;
return inTags(tag, [], this.renderInlines(block.inline_content));
- case 'IndentedCode':
+ case B_INDENTED_CODE:
return inTags('pre', [],
inTags('code', [], this.escape(block.string_content)));
- case 'FencedCode':
+ case B_FENCED_CODE:
info_words = block.info.split(/ +/);
attr = info_words.length === 0 || info_words[0].length === 0 ?
[] : [['class','language-' +
this.escape(info_words[0],true)]];
return inTags('pre', [],
inTags('code', attr, this.escape(block.string_content)));
- case 'HtmlBlock':
+ case B_HTML_BLOCK:
return block.string_content;
- case 'ReferenceDef':
+ case B_REFERENCE_DEF:
return "";
- case 'HorizontalRule':
+ case B_HORIZONTAL_RULE:
return inTags('hr',[],"",true);
default:
console.log("Unknown block type " + block.t);
@@ -3804,7 +3828,7 @@
var renderBlocks = function(blocks, in_tight_list) {
var result = [];
for (var i=0; i < blocks.length; i++) {
- if (blocks[i].t !== 'ReferenceDef') {
+ if (blocks[i].t !== B_REFERENCE_DEF) {
result.push(this.renderBlock(blocks[i], in_tight_list));
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 10:58:27 +0000